Optimize Path#drive, #root, and #anchor#15584
Merged
straight-shoota merged 1 commit intocrystal-lang:masterfrom Mar 24, 2025
Merged
Optimize Path#drive, #root, and #anchor#15584straight-shoota merged 1 commit intocrystal-lang:masterfrom
Path#drive, #root, and #anchor#15584straight-shoota merged 1 commit intocrystal-lang:masterfrom
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HertzDevil
added
performance
platform:windows
straight-shoota
approved these changes
Mar 21, 2025
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Factors out the body of
#drive_and_rootto return the end indices of the drive and root parts respectively, instead of constructing substrings immediately.When both the drive and root are present, which happens to all Windows absolute or UNC paths, this saves a string allocation in
#drive/#root, and a string concatenation in#anchor. This also emphasizes by construction the invariant that#driveand#anchorare always prefixes of the whole path if they exist.